Patents by Inventor Zongyang Xue

Zongyang Xue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8937569
    Abstract: An analog-to-digital conversion device has: an analog-to-digital converter configured to receive an input signal via an input signal node, and convert the input signal to a digital signal; and a control circuit configured to receive the digital signal when the input signal is set to have a fixed value, and change, when a deviation amount of the digital signal with the respect to an expected value is equal to or larger than a threshold value, a value of a capacitor between a power supply potential node and a reference potential node of the analog-to-digital converter and/or values of resistors connected to the power supply potential node and the reference potential node of the analog-to-digital converter.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 20, 2015
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Yasuhiro Mizuno, Sadayoshi Umeda, Zongyang Xue, Tomoharu Watanabe